Wrench



W. L OEVEN.

WRENCH. APPLICATIQN FILED OUT- 10, I919- Patented Apr. 27, 1920.

, 4 IN V EN TOR. WILL/AM 051m A TTORNEYS.

WILLIAM LOEVEN, OF CHICAGO, ILLINOIS.

WRENCH.

Specification of Letters Patent.

Patented Apr. 27, 1920.

Application filed October 10. 1919. Serial No. 329,699.

To all whom it may concern:

Be it known that I, WILLIAM LOEVEN, a citizen of the United States, residin at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Wrenches, of which the following is a specification.

My prevent invention relates to improve ments in jam-wrenches, or what are generally known as pipe-wrenches, which are adapted to grip round objects, although they may be used for nuts and other objects having parallel opposite faces.

The objects of my present invention are the provision of such a structure which is simple in construction and may be economically manufactured, and whlch affords simple facilities for its quickand ready adjustment to the size of articles upon which it is to be employed.- Further objects will be apparent to others after an understanding of my invention is had, and I prefer to accomplish these divers objects in substantially the manner r hereinafter disclosed.

In the drawings Figure 1 represents an article embodyingmy invention showing the same in side view, a portion thereof being broken away to more clearly show the assembly of the handle or lever with the element carrying the opposite aw. 1 Fig. 2 is a view of the structure shown in Fig. 1 at right angles to and from the top thereof.

As will be seen in the drawings, the handle element 1 consists of a piece of bar-metal of, preferably, rectangular cross'section the corners or edges 2 at one end whereof are, preferably, rounded or beveled to provide a better gripping portion or handle. The opposite end of the handle element is cut in an arc shape and serrated, as indicated at 3, for the better gripping of round objects. It will be observed that the are above referred to is struck from a center eccentric to and above the longitudinal axis of handle element 1 for the purpose to be hereinafter referred to.

Between the handle portion and the arcshaped end of the handle element is a slot 4: one of the edges whereof is waved to provide a plurality of pockets 5 which are separated by teeth 6. The member to assemble with the handle element, preferably, comprises a piece stamped from sheet metal of suitable thickness. This blank or stamping is bent centrally upon itself to provide parallel arms 7 adapted to extend upon opposite sides of the handle element. A pin 01' pintle 8 passes between the respective arms and through slot 4 in the handle element. The arms 7 are pro vided at their ends beyond pin 8 with lateral extensions 9 which are bent laterally toward each other, which, together with the pintle,

limit the latitude of movement of the handle element. The portion of the blank at and adjacent the central bend is laterallyextended to provide the preferably inclined jaw 10, and for the purpose of reinforcing this jaw a suitably hardened block 11 may be secured therein by rivets 12, or otherwise.

My invention operates as follows :The pipe or other object to be engaged is brought between jaw 10 and the adjacent edges of arms 7. The handle element is then advanced until the serrated arc-shaped end 3 engages the face of the pipe or other article. The handle element is then moved so that pintle 8 will seat in pocket 5 opposite to said pintle when the arc-shaped end is in engagement with the pipe or other element, and the handle is then pulled in an upward direction or in a direction tending to cause it to aline with arms 7. As pintle 8 is eccentric to the center of are 3 this movement will cause the serrations to bite into the object operated upon thereby preventing the latter from moving with respect to the wrench.

From the foregoing description, taken in connection with the drawing, it will be apparent that I have provided an extremely simple wrench of dependable action, which is economical to manufacture and quick and easy in operation.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A wrench comprising a handle element having a slot intermediate its ends one edge whereof is provided with a plurality of pockets and one end of which handle element is provided with an eccentrioally centered arc-shaped serrated surface, a member coacting with said handle element consisting of a blank folded to form parallel arms between which said handle element is disposed, a pintle extending between said arms and through the slot in said handle element, a laterally extended jaw having an inclined face produced adjacent thebend of said blank, and lateral projections extending from. the opposite ends of said arms adapted to limit the relative movement of said handle element.

2. A wrench comprising a handle element having a slot intermediate its ends one edge whereof is provided with a plurality of pockets and one end of which handle element is provided with an eccentrically centel'ed arc-shaped serrated surface, a member coacting with said handle element consisting of a blank folded to form parallel arms between WlllCll said handle element 1s d1sposed, a plntle extendlng between said arms'and through the slot in said handle,

element, a laterally extended jaw having an inclined face produced adjacent the bend of said blank, lateral PI'OjGCtlOIlS extendlng from the opposite ends of said arms adapted 7 1 919. WILLLUI LOEVEN.

lVitnesses V FLORENCE MITCHELL,

BENJ. T, RooDHoUsn. 

